Locomotive-stocker.



N. E. GEE. LOGOMOTIVE STOKER. APPLICATION FILED 00m. 15, 1912.

Patehted July 14, 1914.

5 SHEETS-SHEET 1.

Lwmo sw N. E. GEE. LOGOMOT'IVE STOKER.

N. 1-1.. GEE.

LOGOMOTIVE STOKER.

APPLICATION FILED 001. 1a, 1912.

Patented July 14,1914.

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4403 after/"e43 N. GEE. LOGOMOTIVE STOKER.

APPLIOIATION FILED OUT. 15, 1912.

Patented July 14, 1914.

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LOCOMOTIVE' STOKER. APPLICATION FILED OUT. 15,1912.

Patented July 14,1914

5 SHEETS SHEET 5.

MNN 9% 25 fireman, thereby enabling 35aposition as not 50 carrying out earner m NORMAN E. GEE, F ALTOONA, PENNSYLVANIA.

LOCOIVIIOTIVE-STOKER.

Specification of Letterslatent.

Application filed October 15, 1912. Serial No. 725,960.

Pennsylvania, have invented certain new and useful Improvements in Locomotive- Stokers, of which the following is aspec1fication.

The present invention relates to certain new and useful improvements in mechanical stokers such as are adapted to be employed upon steam locomotives, the object of the in vention being to provide a device of this character which embodies novel featuresof construction whereby it will operate in an effective and satisfactory manner to convey the fuel from the magazi e of the tender and discharge it into the fire box of the engine.

A further object of the invention is to provide a mechanical stoker which is provided with a novel selective fuel feed which admits of the location of the fuel feeding position on the grate being selected at the will of the an even depth of fire to be maintained over the surface of the furnace grate at all timesregardless of the working conditions of the locomotive.

Another object of the invention is to provide a locomotive stoker which is adapted to feed various kinds of coal over the fire, thus enabling the use of the maximum size of ratefor the furnace, while at the same time the delivery chute of the stoker occupies such to interfere with hand firing when such is necessary.

The invention also aims to provide a mechanical stoker which will use all kinds of run of mine coal without danger of becoming clogged when the coal is coarse or -"feeding too freely when the coal is fine.

With these and many other objects in view, which will be readily apparent .to steam and railroad engineers, the invention consists in the novel construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated and claimed;

The essential features of the invention in the objects above indicated are necessarily susceptible to a structural modifications without departing from the. scope of the appended claims or the spirit of the invention, but a preferred emwide range' of diminished by bodiment thereof is shown in the accompanying drawings, 1n which 2- Figure 1- is a rear elevation of a portion of a standard locomotive which is equipped with the mechanical stoker, the conveyer trough being shown in section, and portions Patented July Mi, 11914.

of the locomotive equipment belng shown for p the purpose of illustrating the relation of the stoker to the standard locomotive. Fig. 2 is a longitudinal sectional view of a portion of the rear of a locomotive furnace, the connection between the engine and the tender, together with a longitudinal sectional view of the forward end of the tender, showing clearly the manner of mounting the 'mechanical stoker upon the and tender. Fig. 3 is a skeletonized longitudinal sectional view of the coal crusher, coahconveyer, and elevating chute,'together with a portion of the fire door, fire box, and grate. Fig. 4 is an enlarged front view of the coal delivery chute with the deflector plate in position. Fig. 5 is a plan view of the coal delivery chute, the bottom deflector plate being shown in position. Fig. 6 is a transverse sectional view through the coal delivery chute Fig. 7 is a similar view on the line 11-l1 of Fig. 5. Fig. 8 is a diagrammatic view of the general combination of instrumentalities including a stocking or delivery chute,

the driving engine, the steam intercepting valve, and the firemans selective valve. Fig. 9 is a sectional view through the steam intercepting valve, showing the piston valve member in a different position from that shown by Fig. 8. Fig. 10 is a detail View of the rotary valve plug of the firemans controlling valve.

Corresponding a'ndlike parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

The present design of mechanical stoker contemplates a series of related elements which work in unison to crush the coal, convey the same to the fire box, and force it into the furnace of the locomotive, and in carrying outthc present invention no change is necessary in the standard design of locomotive, fire box, or grates in the locomotive furnace. The area of the grate isthus not the installation of the stoker,

and it follows standard engine that a locomotive furnace equipped with the present stoker will'not necessitate the forcing of the fires up and above that which is necessary with the same size locomotive the stoker.

" plate to the delivery chute 85, from the mouth of which it is discharged into selected portions of the fire box.

The numeral 10 designates thedriving engine, which is secured to the locomotive frame 11, and may receive steam from the bridge pipe of the'locomotive, the steam dome, or from any other suitable source as may 'be found desirable. A piston 117 is mounted to reciprocate back and forth within the cylinder of the driving engine, the said piston beingconnected to a piston rod- 12 which pro ects forwardly therefrom and is pivotally connected at 13 to the lower end of a crank arm or lever 14 which projects downwardly from the rock shaft 16 and is rigid with the said rock shaft. This rock shaft 16 is.journaled within the suitable bearings 18 and 19 and is provided wardly extending levers or crank arms. 20 and 21. (See Figs. 1 and 2.) The forward ends of the crusher operating-rods 22 are pivotally connected at 28 to the respective arms 20 and '21 at points spaced from the upper end thereof,'the rear ends of the said members 22 being connected to the crusher.

The detail structural characteristics and f functions of this crusher form'no part of the present invention and are not claimed herein, and therefore a detailed description thereof will be unnecessary.

For the purpose of increasing or decreasing the supply of coal from the tender magazine to'the crusher, there is provided a 'supply control plate 43, the said plate 43 being mounted to move in longitudinal guides 44 provided at the upper portion of the crusher frame or casting 34. The endof this plate 43 is pivotally connected tothe upper ends of a pair of levers 45, the said levers projecting upwardly from opposite ends of a'shaft 46 and being rigid therewith. This shaft 46 is shown as journaled in suitable bearin s 46 which are a plied to the rear end of the conveyer 35. gne, of the levers 45 is connected'by a forwardly extending rod 47 to the usual shaker grate lever 48, which is a part ofthe standard equipment for every steam locomotive. (See Flg. 1.) This fuel furnace not equipped with with'a pair of up v supply contro'l' plate 43 can be adjusted to regulate the flow of the coal or fuel fromthe tender magazine 40 to the crusher 23, and the feeding of the coal can'thus be regulated at the will of the operator.

The coal conveyer, designated in its entirety by the numeral 35, .is preferably of the construction, shown in Fig. 3, of the drawings. While the details of construction of the coal conveyer, and its immediately as sociated parts, are not claimed herein as a part of the present invention, it will be necessary to briefly refer thereto in order that a clear understanding may be had of the manner of advancing the fuel into the. delivery chute where the steam jets .come ihto play to eject the charges into the firebox, and

accordingly reference will now be made to this conveyer. The conveyer trough is shown as constructed of side plates 55 and a bottom plate 56, reinforcing angles 57 being rovided fonsecuring the bottom plate to the side plates. The top of'the conveyer is p'rovided uponpposite sides thereof with the longitudinal guides 58 within which the conveyer bars 59 are slidably mounted, the said conveyer bars being held in a properly spaced relation by means of the transversely disposed finger supporting rods'60 which connect the same. A series of coal conveyer fingers 61 is pendent from and pivotally mounted upon each 66, each of the said fingers 61 being formed wlth a rearwardly extending web portion 62v which is provided at the top thereof with a shoulder 64' adapted to engage the trans-- verse stop bars 65 to limit the rearward swinging movements although the said conveyer fingers are perfectly free to swing forwardly. The stops 65 may be inthe nature of bars which have the ends thereof bent laterally to provide feet 66 adapted to besecured by suitable fastening members 67 to the reciprocating conveyer bars 59., The top flanges-68 of the longitudinal guides 58 hold the conveyer bars 59 securely against upward movement, although the said conveyer bars are perfectly free to reciprocate back and forth longitudinally.

The forward ends of the conveyer bars 59 are connected to a cross head 70, the ends of the cross. head being engaged by the links 73 which connect the same to the upper extremitiesof the respective arms 20- and 21 projecting upwardly from the rock shaft 16. It will thus be obvious that as the piston 117 of the engine 10 is reciprocatedback and forth by the admission of steam thereto, the rock shaft 16 will be operated and motion transmitted from the rock shaft to the crusher and to the conveyer. Upon rearward movement of the conveyer slides 59, the fingers 61 will swing forwardly and upwardly and slip over the coal within the of the transverse rods of the conveyer fingers,

3 and forth movement.

1, operating rods or .the levers orarms and 21 at difierent movements bars 59, the fingers 61 will be projected downwardly into the coal andwill engage the coal to move it forwardwithin the conveyer trough, owing to the-fact that any rearward swinging movement of the fingers 61 is rendered impossible by reason of the engagement of the shoulders 64 with the stop bars 65.

At this point attention may be directed to the fact that the movement of-the crusher head is different from that of the coal conveying fingers, owing to the fact that the crusher operating rods 22- and the-conveyer links 73 are connected to points in the length thereof. The crusher head has the greater leverageand smaller amount of movement, this difference in movement being usually lations.

The conveyer forward end of the conveyer being loosely connected by means of joint 127 to thelocomotive frame, while the rear end of the conveyer is supported upon the rollers 128 so as to It will be remembered that the crusher was also loosely connected to the bottom of the tender maga zine, and by means of these loose connections sutlicientfreedom ofmovement is'provided to compensate for the numerous relative between the locomotive and tender.

From the forward end of'th'econveyer 35, the fuel is dischargedinto the elevator chute 7 5 which carries it up to the delivery chute 85. An auxiliary conveyer mechanism is mounted within the elevator chute 75 for the purpose of producing a positive upward feeding of the coal within the same.

The interior of the elevator chute '75 is provided upon opposite sides thereof with the endless guideways 150 which havesubstantially the shape of a parallelogram, the long sides thereof being spaced from and parallel to the bottom of the elevator chute, while the short sides thereof are inclined forwardly and downwardly towardthe delivery chute. The conveyer fingers 7 6 of this auxiliary mechanism are pivotally mounted.

upon the rods 77 which extend transversely bet-ween and connect the conveyer bars 18., the said conveyer bars having the rear ends thereof pivotally connected to the cross head so as to receive motion therefrom. The extremities of the transverse rod 7 7 at the forward end of the conveyer bars 18 project laterally beyond the conveyer bars and are loosely received within the endless guides 150. A. spring detent 151 is provided tothe spring detent having the rear necessary in order to keep the conveyer clear from coal accumu- 35 extends forwardly under the usual deck plate D of the locomotive, the

the ball and socket.

have a limited back ward theforwar'd end of the lower side of the nose of face thereof beveled or inclined so that upon the forward movement of the auxiliary conveyer fingers 76the extremities of-the rod 77 will force the detents 151 inwardly and pass beyond the detents.

each of the, endless guideways,

Upon the rearward movement of the conveyer mechanism, the spring detents-151 will engage the rod 77 and cause the same to travel upwardly through the inclined forward ends of the guideways 150. The fingers 76 will thus be bodily raised and moved away from the bottom of the elevator chute 7 5. Upon the forward movement of the conveyerelements the extremitiesvof the rod 77 will'be caused by gravity to travel downwardly and forwardly so as to 76 downwardly into the coal and cause them to produce a positive the coal through the elevator chute. lit will thus be obvious that upon the forward movement of the conveyer elements the ends of the rod'77 travel in the lower sides time cam guideways 150 so as to force the conveyer fingers 76 downwardly into the coal, while upon the rearward or downward indvement of the conveyer elements, the ends of the rod 77 travel in the upper sides of the cam guideways 150 so as to lift the conveyer fingers 7 6 bodily away from the coal. It will further be observed that the conveyer fingers 76, as in the previousinstance are pivotally mountedupon the transverse rod 77 so as to swing forwardly uponthe rearalt-hough upon the forward movement of the conveyer elements, the rearward swinging movement of the fingers 76 is limited by reathe extremities of I forward movement of force the conveyer fingers "ward movement of the conveyer elements, a

son of the engagement of the shoulders 7 6* v with the transverse stop bars 76. lln order to prevent the fuel from slipping downwardly within the elevator chute 75 upon the rearward movement of the conveyer elements, the bottom of the 'said elevator chute 75 is shown as provided with a series of forwardly facing shoulders 152.

From the upper end of the elevator chute 75 the .coal passes intothe delivery chute 85. from which it can be selective means into t he required or desired areas of the fire box. -'ll.his delivery chute is provided at the top thereof with the steam nozzle thereof with the inclined nozzles 88 and 89, the said nozzles being forwardly dispo ed so that jets of steam from the same will strike against and impinge upon coal within the said chute and carry it into required portions of the fire box. A pair of discharged by- 87, and at the respective sides.

lift

side deflecting Wings 90 are hinged to op- I positc sides of the delivery chute 85. while a bottom deflector plate 100 is hinged to the bottom of the delivery chute 85. This position. The upper or delivery chute 85,

deflector plate 100 (see Fig. 2) has a limited up and down swinging movement and has an operative connection such as indicated;

at 130 with a controlling lever 130. This lever 130 is provided with the usual latch 131 which is adapted to engage a segmental rack 129 to admit of the lever and bottom deflector plate 100 being set in an adjusted top surface of the deflector plate 100 (see Fig. 5) is provided with the raised portions the laterally curved side surfaces, 101. Channels 99 are provided between the raised portions 102, and a transverse series of jet opening 98 at the mouth of chute 85 are arranged to discharge jets of steam into the channels for 'thepurpose. of sweeping the fine coal from the deflector plate. The lat- .erally curved surfaces 101 cause the fine coal to be deposited at the rear of the fire box, this feature having been found necessary and quite essential in order to obviate the escape of thick black smoke from the stack. In this connection it may be noted that engineers have learned through exhaustive experiments that the smoke nulsance can be materially abated by not letting the furnace where the the'fine coal get into force of the draft will pick it up and carry itthrough the flues before it is burned; The jet openings 98 are adapted to receive steam through a duct 97 in the bottom of the the said duct communicating with a pipe 96.

The curved surfaces 101 are the sides of the upstanding ribs 102 which form sort of a screen or filter for the coal, the larger portions of coal resting on the top portions of the ribs 102 and being readily caught by the force of the escaping steam from the nozzles 87 88 and 89 and carried forward into the firebox. The position of the coal as it strikes the grate is determined by the fireman through the adjustment of the deflectingwin'gs 90, together with the cooperation of the firemans controlling valve which is, designated in its entirety by the numerals 103.

The two side wings 90 are connected by a link 91 so as to move inunison, and -an suitable actuating member such as the slide 92 may be employed for setting these wings i coal to one side of the in an adjusted position. It will be obvious that when the lateral wings 90 are both swung 'in the same direction to one side, the tendency of the stoker grate and blank the opposite side of the grate, while when the lateral wings'projec't straight forward, the

tendency of. the stoker will be to feed straightaheadi The firemans' controlling valve 106 -includes a hollow rotary. plug 104 which is provided with a series of lateral openings 106. handle 153 is provided for turning or ribs 102 having the plug 104, and any suitable indicating means may be provided in connection with admit steam to selected ones of the steam nozzles, according to the part of the fire box it may be desired to supply with fresh fuel. Steam pipes 107 lead from the respective nozzles 87, 88 and 89, while a steam pipe 96 'leads from the duct 97. These pipes 96 and 107 communicate with openings or ports 106 in the casing of the valve 103. steam supply pipe 107 communicates with a duct 105 in the casing of the valve 103 and steam is admit-tedthrough this duct and one of the openings'106 of the valve plug 104 into the interior of the said valve plug. By suitably rotating this valve plug 104, selected ones of the ports or openings 106 therein can be brought into register with the ports 106' of the valve casing so as to place certain selected nozzles in communicavalve and to the nozzles is intermittent, so that the jets of steam act successively upon the fuel with a piston action. It will thus be seen that this part of the stoker acts as a stoking engine, the intermittent jets of steam impinging upon the intervals of time so that the steam jets form in effect piston members which engage the coal and shove it into the fire box. It will be readily obvious that by properly adjusting the controlling 4 can be supplied to any desired part of the furnace grate at the will of the operator, and this-selective feeding of the fuel is placed more completely under the control of will be to feed the" the operator and rendered more effective When the lateral wings 90 are used in conjunction with valve. As has the sweeping jets fine coal which upon the bottom been previously explained,

98 serve to act upon the inay have been detained of the deflector'plate 100 so as to cause the same to be deposited in th rear of the fire box.

The steam for the jets of the delivery main engine .10, an intercepting valve 108 reach the jets valve 108 is provided with a substantially cylindrical chamber 110 within which a two diameter piston valve 110 is accurately mounted for a reciprocating movement. This valve member 110 is provided with a transverse passageor port b, and also with a transverse passage 112. When the valvemember 110 is in the position illustrated by- Fig. 8, exhaust steam from the engine 10 passes through the exhaustpipe' E to the ductlll of the .valve 108, flows through the transverse port I) of the valve member 110, and from thence passes through the port 111 chute is supplied by the exhaust from the.

this handle for enabling the operator to tion with the source of steam supply. The supply of steam to the firemans controlling coal at successive valve 103, the fuel the firemans controlling- 115 being provided for causing the steam to v in intermlttent streams. This i controllin valve 103. As the steam passes j trolling valve103 is completely shut off, the

1 entering the chamber 119 of the cylinder of "to the smoke box.

i 110, it will also flow throuvh the longitudinal passage 113 of the sai slowly through the small port 114 into the 11 6' into the passage 112 w ich communimember 110* back into valve member 110? reaches the extreme position indicated by Fig. 8, the steam in the forling to the pipe 1O"- which leads to the firemans through t e transverse port 6 of the valve. valve and issue space between the end of the valve 110 and the. closed end of the valve casing. This steam will act uponv the valve member and force same to the left, until the position indicated by Fig. 9 is finally reached. The steam within the closed end ofthe valve casing can then escape throu h the opening cates with the pipe 155 leading to the smoke box, When the valve 110 is in theposition illustrated by Fi'g. 9, the sup )ly of steam thrQUg theplpe 16 to the remans conexhaust steam from the exhaust pipe E passln'g' through the duct 111", transverse port 112. of the valve member 110", and the pasportion of the grate.

87 is selected for 0 eration singly, the effect is a straightaway last upon the fuel to discharge'the same central h grate. 1

Having thus described the invention, what I claim as new an ters Patent, is

1. stoker including a fuel receiver, means for supplying fuel thereto, a plurality of steam jetting discharge the fuel from the receiver and arsage 112* totlie pipe 155 which carries it to zle the" smoke on.

'lhe piston 11'] of the enginelO being at the forward end of the stroke, live steam member and enter the opposite end f t e Casing of the'valve' 108 so that the expansive action thereon will force the valve he position shown by Fig. '8. A further supply of steam will then be'admitted to thefiremans controlling valve 103 and the valve member 110 again forced back tothe position shown by Fig. 9, by reasonof the slight leakage of steam through the port 1114 into the space between the end of the valve member and the closed end of. the valve-casing.

{ "With the piston 117 at ,the rear end of 'ts stroke, steam entring the chamber 123 of the cylinder will also flow through the pipe 1241 and through the curved passage 122 of the small end of the valve member 110 so as to enter the interior 'llll of the casing .108 through the other 10f said passages 121 and again act upon the valve member 110 to' force it back to the position shown by Fig. 8. When the,

ward end of the space 110 can. exhaust through. the port 110 into the port 111 and be siphoned away by the steam flowing through the pipe 107. It will thus be ob- Vious that the exhaust from the engine 10 will be.alternately supplied to the 'firemans control valve 103 and to the pipe 155 leading The interceptingvalve 108 thus provides an intermittent steam supzles 8 such nozzles is selected to operatesmgly, the. blast therefrom strikes the fuelobliquely, the r 5 5 ranged at different angles, a source of pressure cation w r means for simultaneously opening one or more nozzles and clos'ng the remaining rm- 2. A stoker including a means for feeding fuel thereto, steam jettin nozzles opening into opposite sides of said receiver at an angle for discharging the fue therefrom, fuel guiding means located beyond the said nozzles and havingan'adjuSt ment conforming to the angularity of said nozzles, a. source of fluid pressure supply for the nozzles, and a'variable controlling. 1 device having means for selectively controlsaid nozzles. i y

3. A stoking mechanism including a delivery mouth, means for feeding fuel thereno to, fuel guiding means including side mempinging upon the coal so as to be very effective in forcing the same into the fire box. The entire stoker mechanism is actuated either directly or indirectly from the engine 10, and when steam is admitted to this .en- 7; gine, the crusher and all conveyer elements are simultaneously operated, and steam supplied intermittently to the firem'ans controlling valve 103. By suitably setting this controlling valve 103, the coal can then be dis- 5 charged into any,des1red or selected portions of the fire box so as to maintainan even depth of fire over the entire surfaceof the locomotive grate at all times, regardless of the working conditions of he locomotive. 30

In this connection, it will be observed that the angular disposition of the inclined noz- 8 and 89 is such that when either of result tending to force the same over one on When the central nozy upon t e no desire to secure by Letnozzles arranged to supply, a single valve in commun 10o ith the several nozzles "and haying zle or nozzles, and means i' terposed between said valve and, source of fuel receiver,

bers, and a bottom plate e. tending from the discharge end of the mouth, a plurality of sweeping jet openings arranged to producejets"wh1ch sweep the top of plate, a nozzle adapted to produce a fuel eject-i ply for the steam nozzles of the delivery rear 0 said bottom 125 etdischarging into the mouth in said fuel guiding means, a source of chute, the intermittent jets of steam having l fluid pressure supply, and a single controla piston action and striking against and imling valve for selectively controlling the 30 uid pressure sup- 105' ply for producing an lntermittent flow of the fluid to and through said valve.

said nozzle and the said sweeping jet openings.

means for conveying the exhaust from the engine to the said nozzle, and an intercepting va ve operated automatically by the exhaust and serving to produce an intermittent feed of the exhaust to the nozzle. f 5. A stoker including adelivery mouth, mechanical conveying means for carrying fuel toward the fire box, an engine for operating the conveying means, a nozzle adapted to produce a jet for discharging the'fuel from the delivery mouth into the fire box, means for conveying the exhaust fromthe engine to the said nozzle, interposed in the path of the exhaust and the nozzle, said intercepting valve including a reciprocating valve member actuated automatically by the pressure of the exhaust and serving to produce an intermittent feed of the exhaust to the nozzle.

6. A stoker including a delivery mouth, adjustable deflecting wings projecting from the discharge end of the delivery mouth, a swinging bottom plate upon the delivery mouth, sweeplng et openings arranged to produce jets whlch sweep the bottom plate, a series of nozzles adapted to produce jets for discharging the fuel from the delivery mouth into the fire box, and selective means for controlling the admission of fluid to the nozzles and sweepin jets,

7. A stoker including a delivery mouth, a bottom plate projecting from the discharge end of the delivery mouth and having a plurality of diverging spreading channels therein, a nozzle adapted to produce a jet for discharging the fuel chargefrom the delivery mouth into the fuel box, means to sweep the channels for producing jets of the bottom plate, a single selective controlling valve ln communication with said nozzle and said jets, and a source offluid pressure supply for the valve.

8. A stoker including a delivery mouth, mechanical conveying means for carrying fuel to the delivery mouth, a series of ad justable deflecting wings at the discharge end of. the delivery mouth, a swing-in bottom plate projecting from the de ivery mouth and having laterally curved channels in the upper face thereof, said channels beand an intercepting valve ing adapted to collect the fine particles of fuel, a series of nozzles adapted to produce jets for discharging the fuel from'the delivery mouth into the fire box, means for plurality of nozzles adapted to produce jets for discharging the fuel from the delivery mouth into the fire box, a source of fluid pressure supply, a controlling valve in communication with the said source of fluid pressure supply, and means for conveying the fluid medium from the controlling valve to the separate nozzles, the said controlling valve enabling selected ones of the nozzles ,to be operated.

10. A stoker including a delivery mouth, a plurality of nozzles adapted to produce jets for discharging the fuel from the delivery mouth into the fire box, a source of fluid pressure supply, a controlling valve in communication with the separate nozzles and constructed to admit of a selected nozzle or nozzles being operated, means for conveying the fluid pressure from the source of supply and means for proto the controlling valve, flow of. the fluid ducing an intermittent cooperate with the deflect- V medium from the source of supply to the controlling I valve.

11. A stoker including a delivery mouth, l

a series of nozzles adapted to produce jets for discharging the fuel from the delivery mouth into the fire box, a source of fluid pressure supply, a controlling valve in communication with'the sourceof fluid pressure supply and also in; communication with the Various nozzles, said controlling valve enabling selected ones of the nozzles to be operated as desired, and an intercepting valve arranged in the path of the fluid me dium between the source of supply and the controlling valve, said intercepting valve beingoperated automatically bythe pressure of the fluid medium and serv ng to produce an intermittent supply of the fluid medium to the controlling valve.

In testimony whereof I affix my signature .111 presence of two witnesses.

Witnesses: I

ANNI K. MILLER, 7

Jnssm KELLEn I .5

NORMAN E. 

